In my case, it is because win10 purports to be a touch interface OS. As touch apparently has priority of 8, rather than keyboard of 13-ish, I find that my ability to interact is severely hampered by nearly Anything going on in the background (and unbeknownst to humble me) so that I have no idea if the command that I have given is simply taking too long to respond, or if it was lost entirely, I.e., opening 3 browser windows after some seconds of being bizzy and Not indicating (even though it did respond with the finger-circle, in some cases) that it has read my command and that it is simply too bizzy to respond instantly. I have trouble even Closing an app, many times. I chose to sample win10 as I wanted to have a large-screen touch computer for the family to use easily. Ignoring a possible outlier over Years of use, no iOS or Android touch interface has ever remotely had issues like this.
If interaction is wonky, it is hard to get excited about 'features', 'security', or the 'new look'. I tried it, I found it wanting in its current evolution, please leave me alone until the next iteration - that is All we ask, and in my biased view, that doesn't seem like too much to ask.
I, too, have run the script so I am no longer bothered by attempts to convince me to upgrade. I have erased the helpful download 8 times prior to researching how to stop that from happening. Good luck, all readers that find this all perfectly acceptable, if you Are in the industry you likely would have been encouraged to find alternative employment back in the 8 bit days, when wonky was not an admirable trait.